public class Demo06 {
    public static void main(String[] args) {
        int[] arr = {1,2,3,4,5,6,7,8,9,10};
        System.out.print("逆序前：");
        for (int i = 0; i < arr.length; i++) {
            System.out.print(arr[i] + "  ");
        }
        System.out.println("\n==================================");
        for (int i = 0; i < arr.length / 2; i++) {
            int temp = arr[i];
            arr[i] = arr[arr.length - 1 - i];
            arr[arr.length - 1 - i] = temp;
        }
        System.out.print("逆序后：");
        for (int i: arr){
            System.out.print(i + "  ");
        }
    }
}
